1. 21 Mar, 2017 4 commits
    • Anton Khirnov's avatar
      pthread_frame: use atomics for frame progress · b6587421
      Anton Khirnov authored
      Merges Libav commit 59c70227.
      Signed-off-by: 's avatarwm4 <nfxjfg@googlemail.com>
      b6587421
    • Anton Khirnov's avatar
      pthread_frame: use atomics for PerThreadContext.state · 74926269
      Anton Khirnov authored
      Merges Libav commit 64a31b28.
      Signed-off-by: 's avatarwm4 <nfxjfg@googlemail.com>
      74926269
    • wm4's avatar
      ffmpeg: don't unnecessarily use a deprecated API function · 87c082c4
      wm4 authored
      Since we've disabled side data merging in ffmpeg.c, this really changes
      nothing.
      87c082c4
    • wm4's avatar
      avcodec, avformat: deprecate anything related to side data merging · d682ae70
      wm4 authored
      This patch deprecates anything that has to do with merging/splitting
      side data. Automatic side data merging (and splitting), as well as all
      API symbols involved in it, are removed completely.
      
      Two FF_API_ defines are dedicated to deprecating API symbols related to
      this: FF_API_MERGE_SD_API removes av_packet_split/merge_side_data in
      libavcodec, and FF_API_LAVF_KEEPSIDE_FLAG deprecates
      AVFMT_FLAG_KEEP_SIDE_DATA in libavformat.
      
      Since it was claimed that changing the default from merging side data to
      not doing it is an ABI change, there are two additional FF_API_ defines,
      which stop using the side data merging/splitting by default (and remove
      any code in avformat/avcodec doing this): FF_API_MERGE_SD in libavcodec,
      and FF_API_LAVF_MERGE_SD in libavformat.
      
      It is very much intended that FF_API_MERGE_SD and FF_API_LAVF_MERGE_SD
      are quickly defined to 0 in the next ABI bump, while the API symbols are
      retained for a longer time for the sake of compatibility.
      AVFMT_FLAG_KEEP_SIDE_DATA will (very much intentionally) do nothing for
      most of the time it will still be defined. Keep in mind that no code
      exists that actually tries to unset this flag for any reason, nor does
      such code need to exist. Code setting this flag explicitly will work as
      before. Thus it's ok for AVFMT_FLAG_KEEP_SIDE_DATA to do nothing once
      side data merging has been removed from libavformat.
      
      In order to avoid that anyone in the future does this incorrectly, here
      is a small guide how to update the internal code on bumps:
      
      - next ABI bump (probably soon):
        - define FF_API_LAVF_MERGE_SD to 0, and remove all code covered by it
        - define FF_API_MERGE_SD to 0, and remove all code covered by it
      - next API bump (typically two years in the future or so):
        - define FF_API_LAVF_KEEPSIDE_FLAG to 0, and remove all code covered
          by it
        - define FF_API_MERGE_SD_API to 0, and remove all code covered by it
      
      This forces anyone who actually wants packet side data to temporarily
      use deprecated API to get it all. If you ask me, this is batshit fucked
      up crazy, but it's how we roll. Making AVFMT_FLAG_KEEP_SIDE_DATA to be
      set by default was rejected as an ABI change, so I'm going all the way
      to get rid of this once and for all.
      Reviewed-by: 's avatarJames Almer <jamrial@gmail.com>
      Reviewed-by: 's avatarRostislav Pehlivanov <atomnuker@gmail.com>
      Reviewed-by: 's avatarMichael Niedermayer <michael@niedermayer.cc>
      d682ae70
  2. 20 Mar, 2017 36 commits